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Finding the Fourth Proportional to 287,179.65, 396,301.18 and 159,852.51

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Solution

The fourth proportional to 287,179.65, 396,301.18 and 159,852.51 is: 220,592.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,179.65 : 396,301.18 = 159,852.51 : x
  2. Step 2: Convert to fraction form
    287,179.65/396,301.18 = 159,852.51/x
  3. Step 3: Cross multiply
    287,179.65x = 396,301.18 × 159,852.51
  4. Step 4: Simplify right side
    287,179.65x = 63,349,738,338.96
  5. Step 5: Solve for x
    x = 63,349,738,338.96/287,179.65
  6. Step 6: Final answer
    x = 220,592.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.